VulnerabilityPublished 21 Feb 2026Updated 23 Feb 2026

CVE-2026-2863: feng_ha_ha ssm-erp · Path Traversal

Affects feng_ha_ha ssm-erpSource CVE Database V5

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Public exploit available · CVSS 5.3 Medium.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 4.0 base score

5.3Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.4% chance of exploitation in 30 days – higher than 37% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Base metrics

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: None
Vulnerable system confidentiality: None
Vulnerable system integrity: Low
Vulnerable system availability: Low
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Threat metrics

Exploit Maturity: POC

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact to the Vulnerable System.
Vulnerable system availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the Vulnerable System are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.
Exploit Maturity: POC: Based on threat intelligence sources each of the following must apply: · Proof-of-concept is publicly available · No knowledge of reported attempts to exploit this vulnerability · No knowledge of publicly available solutions used to simplify attempts to exploit the vulnerability

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 21 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
feng_ha_hassm-erp	Affected =4288d53bd35757b27f2d070057aefb2c07bdd097	Fixed in–
feng_ha_haproduction_ssm	Affected =4288d53bd35757b27f2d070057aefb2c07bdd097	Fixed in–
megagaossm-erp	Affected =4288d53bd35757b27f2d070057aefb2c07bdd097	Fixed in–
megagaoproduction_ssm	Affected =4288d53bd35757b27f2d070057aefb2c07bdd097	Fixed in–

AI-suggested

Implement strict input validation and sanitization on all file path parameters, especially in the deleteFile function, to prevent directory traversal sequences such as '../'.
Employ application-level access controls to restrict file deletion operations to authorized users and limit the scope of deletable files to predefined directories.
Use web application firewalls (WAFs) with rules designed to detect and block path traversal attempts targeting the ERP system.
Monitor logs for suspicious file deletion requests or unusual access patterns indicative of exploitation attempts.
Isolate the ERP system within a segmented network zone to reduce exposure to untrusted networks.
Regularly back up critical ERP data and configuration files to enable recovery in case of malicious deletion.
Engage with the vendor or community to track any forthcoming patches or updates and apply them promptly once available.
Consider temporary compensating controls such as disabling the vulnerable deleteFile functionality if feasible until a patch is released.

Description

A flaw has been found in feng_ha_ha/megagao ssm-erp and production_ssm up to 4288d53bd35757b27f2d070057aefb2c07bdd097. The impacted element is the function deleteFile of the file FileServiceImpl.java. This manipulation causes path traversal. The attack can be initiated remotely. The exploit has been published and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. This product is distributed under two entirely different names. The project was informed of the problem early through an issue report but has not responded yet.

Impact

The primary impact of CVE-2026-2863 is on the integrity and availability of affected ERP systems. By exploiting the path traversal flaw, attackers can delete arbitrary files on the server, including configuration files, logs, or other critical data, potentially leading to system instability, denial of service, or loss of important business data. This can disrupt business operations, cause financial loss, and damage organizational reputation. Since the vulnerability can be exploited remotely without user interaction and requires only low privileges, it poses a significant risk especially in environments where the ERP system is exposed to untrusted networks. The lack of vendor response and patch availability increases the window of exposure. Organizations relying on these ERP products may face operational downtime and increased incident response costs if exploited.

Summary

CVE-2026-2863 is a path traversal vulnerability identified in the deleteFile method of the FileServiceImpl.java file within the feng_ha_ha ssm-erp and production_ssm software products. The flaw arises from insufficient validation or sanitization of file path inputs, enabling an attacker to traverse directories and delete files outside the intended scope. The vulnerability can be exploited remotely without user interaction and requires only low-level privileges, making it relatively easy to exploit. The products affected are distributed under two different names and use continuous delivery with rolling releases, complicating precise version identification and patching. The CVSS 4.0 score is 5.3 (medium), reflecting network attack vector, low attack complexity, no authentication required, and limited impact on confidentiality but moderate impact on integrity and availability. This vulnerability could allow attackers to delete critical files, potentially disrupting ERP operations and causing data loss or service outages.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 28 Feb 2026, 13:25 UTC

Technical details

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